<script lang="ts" setup>
import { reactive, ref } from "vue"
import { useRouter } from "vue-router"
import { useUserStore } from "@/store/modules/user"
import { User, Lock, Key, Picture, Loading } from "@element-plus/icons-vue"
import ThemeSwitch from "@/components/ThemeSwitch/index.vue"
import { type FormInstance, FormRules } from "element-plus"
// import { getLoginCodeApi } from "@/api/login"
import { type ILoginRequestData } from "@/api/login/types/login"

const router = useRouter()
const loginFormRef = ref<FormInstance | null>(null)
const baseURL = import.meta.env.VITE_BASE_API

/** 登录按钮 Loading */
const loading = ref(false)
/** 验证码图片 URL */
const codeUrl = ref("")
const key = ref(0)
/** 登录表单数据 */
const loginForm: ILoginRequestData = reactive({
  username: "",
  password: "",
  code: "",
  uuid: ""
})
/** 登录表单校验规则 */
const loginFormRules: FormRules = {
  username: [{ required: true, message: "请输入用户名", trigger: "blur" }],
  password: [
    { required: true, message: "请输入密码", trigger: "blur" },
    { min: 5, max: 16, message: "长度在 5 到 16 个字符", trigger: "blur" }
  ],
  code: [{ required: true, message: "请输入验证码", trigger: "blur" }]
}
/** 登录逻辑 */
const handleLogin = () => {
  loginFormRef.value?.validate((valid: boolean) => {
    if (valid) {
      loading.value = true
      // console.log(loginForm.code)
      useUserStore()
        .login({
          username: loginForm.username,
          password: loginForm.password,
          code: loginForm.code,
          uuid: loginForm.uuid
        })
        .then(() => {
          router.push({ path: "/" })
        })
        .catch(() => {
          createCode()
          loginForm.password = ""
        })
        .finally(() => {
          loading.value = false
        })
    } else {
      return false
    }
  })
}
// console.log(process.env.NODE_ENV)
/** 创建验证码 */
const createCode = () => {
  // 先清空验证码的输入
  loginForm.code = ""
  key.value += 1
  // 获取验证码
  loginForm.uuid = new Date().getTime() + ""
  codeUrl.value = `${baseURL}/getCode?uuid=${loginForm.uuid}`
}

// /** 初始化验证码 */
createCode()
</script>

<template>
  <div class="login-container">
    <ThemeSwitch class="theme-switch" />
    <div class="login-card">
      <div class="title">
        <img src="@/assets/layout/logo-text-2.png" />
      </div>
      <div class="content">
        <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" @keyup.enter="handleLogin">
          <el-form-item prop="username">
            <el-input v-model.trim="loginForm.username" placeholder="用户名" type="text" tabindex="1" :prefix-icon="User"
              size="large" />
          </el-form-item>
          <el-form-item prop="password">
            <el-input v-model.trim="loginForm.password" placeholder="密码" type="password" tabindex="2"
              :prefix-icon="Lock" size="large" show-password />
          </el-form-item>
          <el-form-item prop="code">
            <el-input v-model.trim="loginForm.code" placeholder="验证码" type="text" tabindex="3" :prefix-icon="Key"
              maxlength="7" size="large">
              <template #append>
                <el-image :src="codeUrl" @click="createCode" draggable="false" :key="key">
                  <template #placeholder>
                    <el-icon>
                      <Picture />
                    </el-icon>
                  </template>
                  <template #error>
                    <el-icon>
                      <Loading />
                    </el-icon>
                  </template>
                </el-image>
              </template>
            </el-input>
          </el-form-item>
          <div class="router-text">
            <router-link class="link-to-reg" to="/register">还没账号?前往注册</router-link>
            <router-link class="link-to-reg" to="/password">忘记密码?</router-link>
          </div>
          <el-button :loading="loading" type="primary" size="large" @click.prevent="handleLogin"> 登 录 </el-button>
        </el-form>
      </div>
    </div>
    <div class="footer">
      <!-- <el-link href="https://beian.miit.gov.cn/">豫ICP备2021038539号-2</el-link> -->
    </div>
  </div>
</template>

<style lang="scss" scoped>
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  min-height: 100%;

  .footer {
    position: fixed;
    bottom: 10px;
    padding: 20px;
    line-height: 30px;
    text-align: center;
  }

  .theme-switch {
    position: fixed;
    top: 5%;
    right: 5%;
    cursor: pointer;
  }

  .login-card {
    width: 480px;
    border-radius: 20px;
    box-shadow: 0 0 10px #dcdfe6;
    background-color: #fff;
    overflow: hidden;

    .title {
      display: flex;
      justify-content: center;
      align-items: center;
      height: 150px;

      img {
        height: 100%;
      }
    }

    .content {
      padding: 20px 50px 50px 50px;

      :deep(.el-input-group__append) {
        padding: 0;
        overflow: hidden;

        .el-image {
          width: 100px;
          height: 40px;
          border-left: 0px;
          user-select: none;
          cursor: pointer;
          text-align: center;
        }
      }

      .el-button {
        width: 100%;
        margin-top: 10px;
      }
    }
  }
}

.link-to-reg {
  display: block;
  text-align: center;
  font-size: 12px;
  color: #409eff;
}

.router-text {
  display: flex;
  justify-content: space-around;
}
</style>
